Table 1 Background characteristics of the patients
From: Investigation of cryotherapy for pain relief after arthroscopic shoulder surgery
|  | 5 °C | 10 °C | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
24-h group n = 15 | 16-h group n = 13 | 24-h group n = 9 | 16-h group n = 15 | |||||||||||||
Sex (n) | Male | Female | Male | Female | Male | Female | Male | Female | ||||||||
13 | 2 | 10 | 3 | 7 | 2 | 11 | 4 | |||||||||
Age | 61.6 ± 6.6 | 64.2 ± 10.4 | 61.4 ± 10.5 | 63.8 ± 8.9 | ||||||||||||
Height (cm) | 165.0 ± 6.8 | 163.5 ± 7.7 | 164.0 ± 10.4 | 160.0 ± 7.1 | ||||||||||||
Weight (kg) | 67.2 ± 10.2 | 65.2 ± 13.1 | 65.8 ± 14.3 | 62.2 ± 13.0 | ||||||||||||
BMI (kg/m2) | 24.7 ± 3.6 | 24.2 ± 3.6 | 24.1 ± 3.3 | 24.2 ± 3.3 | ||||||||||||
Preoperative pain (n) | No | Yes | No | Yes | No | Yes | No | Yes | ||||||||
12 | 1 | 13 | 2 | 9 | 6 | 9 | 0 | |||||||||
Preoperative VAS score (average) | 1.8 | 3.2–5.0 (4.1±0.9) | 1.0–7.0 (2.7±2.0) | 0 | ||||||||||||
Operative time (min) | 139.8 ± 44.6 | 145.2 ± 45.5 | 117.7 ± 29.2 | 127.1 ± 28.7 | ||||||||||||
No. of ruptured tendons (n) | Zero | One | Two | Three | Zero | One | Two | Three | Zero | One | Two | Three | Zero | One | Two | Three |
0 | 1 | 10 | 4 | 0 | 2 | 9 | 2 | 0 | 3 | 4 | 2 | 0 | 1 | 11 | 3 | |
Tenotomy (n) | No | Yes | No | Yes | No | Yes | No | Yes | ||||||||
6 | 9 | 8 | 5 | 4 | 5 | 6 | 9 | |||||||||
Interscalene brachial plexus block (n) | Without nerve | With nerve | Without nerve | With nerve | Without nerve | With nerve | Without nerve | With nerve | ||||||||
9 | 6 | 6 | 7 | 4 | 5 | 5 | 10 | |||||||||
IV-PCA | No | Yes | No | Yes | No | Yes | No | Yes | ||||||||
2 | 13 | 4 | 9 | 4 | 5 | 5 | 10 | |||||||||
Analgesic use (average) (frequency) | 1.6 ± 1.5 | 1.2 ± 1.6 | 1.6 ± 1.6 | 1.7 ± 1.3 | ||||||||||||
0–5 | 0–6 | 0–4 | 0–4 | |||||||||||||